hw 6 - syed(sms3768 HW6 sathasivan(48475 This print-out...

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syed (sms3768) – HW6 – sathasivan – (48475) 1 This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 10.0 points To respond to a signal, a cell must have a(n) molecule that can detect the signal. 1. autocrine. 2. All oF these 3. paracrine 4. responder 5. receptor correct Explanation: 002 10.0 points Passive transport is used primarily to trans- port small molecules across membranes 1. against their concentration gradients. 2. against their electrical gradients. 3. All are correct. 4. down their concentration gradients. cor- rect 5. down their electrical gradients. Explanation: 003 10.0 points What is an example oF a secondary active transport? 1. proton-sucrose pump correct 2. intake oF HDL-cholesterol by the receptor mediated process 3. secretion oF enzymes such as lysozyme in saliva 4. sodium-potassium pump 5. proton pump Explanation: 004 10.0 points Which oF the Following processes does not involve the uptake oF materials into the cell? 1. Endocytosis 2. Pinocytosis 3. Phagocytsis 4. Receptor-mediated endocytosis 5. Exocytosis correct Explanation: 005 10.0 points IF ΔG oF a chemical reaction is negative and the change in entropy is positive, you can
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This note was uploaded on 05/02/2011 for the course BIOLOGY 311C taught by Professor Sathasivan during the Fall '10 term at University of Texas.

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hw 6 - syed(sms3768 HW6 sathasivan(48475 This print-out...

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